The hydrogen storage has been studied in several series of porous Prussian blue analogues
but not in the iron one, T3[Fe(CN)6]2 with T ¼ Mn, Co, Ni, Cu, Zn, Cd. In this contribution the
study of the H2 adsorption in that series of porous solids is discussed. For comparison, the
H2 adsorption isotherm in Fe4[Fe(CN)6]3 was also recorded. All the samples to be studied
were characterized from energy-dispersed spectroscopy, X-ray diffraction, infrared,
Mo¨ ssbauer, and thermogravimetric data. The cavity volume to be occupied by the
hydrogen molecule was estimated from the amount of water molecules found within the
cavity. The obtained value for the cavity volume was then used to calculate the density for
the hydrogen storage within the cavity. The obtained density values remain below the
value corresponding to its liquid state (71 g/L).
ª 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved